Duplex fastener-setting machine



F. L. HARMON. DUPLEX FASTENER SETTING MACHIN E APPLICATION FIYLED JUNE 9, I9 Z0- Patentd Aug. 22;, 1922.

Fan]! L. Harmon ATTURNEY "rat r ser I sit FRANK L. Harmon, or BEVERLY, masseoirosnrrs, assrenonj'ro rnn-srnennmann 1 reornnnve COMPANY, or ELIZABETH. nnwsnnsnne ooarorearronorinnw JERSEY.

T 0 all whom it may concern:

Be itknown that l, FRANK L. HAnMoiv,

a citizen of thev United States, residing at.

and setting elements together with means for ejecting the punchings, so that they may not interfere with the proper operation of the elements, nor be ejected in a manner'to cause annoyance to the operator.

. For a more complete understanding of this invention, one embodiment thereof has been shown in the accompanying drawings in connection with a machine of the type disclosed in the patentto Harmon 1,262,336,

April 9, 1918, though it should be recognized that it isnot limited to this type of machine,

but might be embodied if :desired in ma chines of other types.

In these drawings, i Fig. 1, is a fragmentary elevation showing the punchingv andv setting mechanisms in retracted position. v

Fig. 2, is a fragmentary elevation with parts in section showing the parts in position with the materials punched and the fasteners about to be set.

Fig. 3, is a detail showing the fasteners set and the punchings ejected.

Fig. 4c, is a plan partly broken away of the double ended punch and set element, and,

Fig. 5, is a detail showing a modification. Referring to Fig. 1, A represents a yoke frame having spaced sleeves 1 and 2 carrying telescopically arranged therein the set elements 3 and 4 and the punch elements 5 and 6. Punch elements 5 and 6 are solid throughout instead of hollow as in the patent above mentioned, and serve as anvil members to press material against cutting punch elements 7 and 8. carried by central block 9 which is supported by a bracket 10 from the yoke frame A,

At 11 and 12, are shown actuating levers operating in the manner disclosed in the above mentioned patent, to actuate in suit- Specification of letters t am-i] Application filed June 9, 1920; Serial 'Np. 387,549,

DUPLEX rAsTnnnn-snr'rnve MACHiNE. I

he. 2-, j 1.

able sequence flthe telescopi'cally arranged.

punch. and set elements. 1

Eiurrounding the cutting edges T'and 8 off the block 9", are {die portions 13 and 14; which operate in conjunction with the set elements e'esse'd as sh own'at'15 between the opposed e0 3 ands to set the fasteners. -Block 9 is recutting an'd setting end portions .and within this recess 1s made fast a-doubl'e arme'd'leaf spring 16'. The fre'e' ends of spring 16 impinge against the-heads of'ejector pins- 17' and 18' withinthe recess15, thesepins -be-.

in'g-slidable in perforationsiii-the block 9 and, with their outer jends extending into recesses'fll9 and 19" formed Within and bounded by the cutting edges 7' and 8., these' recesses forming sockets for the reception of the punching'si,removed by the cutting. edges:

Asshown in 2,3, and 1, spring 16 is'retain'ed in position'by means of a pin' 20 passing thereth'rough .and ;made] fast in I block 9,-and'1'n Fig, 5, a 'IIlOdlfiCELfilOIl; 1s

shown in which the springis held between the aws-'21 and'22 'of'a pin 23 which passes laterally through the-block 9, these jaw s21 and-- 22 being bent] laterally externally of j the l lo eke) to retain the {pin 23 in position.

.Bythis form of fastening, no perforation of the: spring is required.

wln operationia piece of m'aterialis passed between each end of the block 9 and the matingtelescopicpunching and set elements.

On actuation of the levers. 11 and 12, the

elements 5 and 6 are made'to press the ma terial againstthe oppositely disposed cutting edges, and duringthemovement to that position are caused by suitable means, such as areshown in the above mentioned patent, to take the eyelets therewithfinto positions as shown in Fig. 2.. The set elements?) and I a are then caused to approach the block 9 thus forcing the eyelets through the material and clenching thev same between the mating clenchsurfaces. 1 i

During the punching of the material, the plungers or pins 17 and 18 are caused to retract by the pressure ofthe punchings thereagainst, in opposition tothe spring 16,

theseparts being held this position during the setting of the eyelets. The sets and 4t are thencausedto-retract, followed 1 closely thereafter'by thesolid end punch.

elements 5 and 6, whereupon the pressure I holding the punchings withinthe socket 19 and 19 is relieved so that the pins 17 and 18 are free to eject them by the action of the spring 16. The frame A is then caused ton'iov'e relative to the Work, to position the elements for the succeeding punching and setting operations.

Having thus described one embodiment of this invention, what is claimed is 1. In combination, a frame, punch-elements sustained thereby and directed each toward the other, a double-ended cutting punch sustained by said frame intermediate said punch-elements and adapted for coperation therewith, and punching-ejector means carried by said punch.

2. lfn combination, a frame, a doublecndedcutting aunch sustained thereby, cooperating punc h-elements sustained by said frame in permanent register with and at opposite ends of said punch, and punchingejector means carried by said punch.

3.111 combination, a frame, a doubleended cutting punch sustained thereby, cooperating cutting elements sustained by said frame at opposite ends of said punch, and punching-ejector elements acting in opposition to said punch elements.

l-.ln combination, a block having on opposite faces punch elements and sockets and means for ejecting the punchings from said sockets on the retraction of said work pressing means.

6. In combination, a block having opposed punch elements and fastener setting surfaces, means for pressing work against said punch elements to punch the same, setting means telescopically related to said pressing means and co-operating with said setting surfaces to set fasteners in the holes punched, and oppositely acting ejector means for freeing the punchings from said punch elements on the. retraction of said pressing means. 7

7. A double ended cutting punch, op posec. punching ejector elements carried thereby, and a spring interposed between said elements to urgethem in directions to eject punchings. I

8. A. double ended cutting punch, 0ppesed punching ejector elements carried thereby, and a double armed leaf spring interposed between said elements to urge them in directions to eject punchings.

9. A double ended cutting punch, a reces in said punch between said ends, pins for ejecting punchings from said ends and projecting within said recess, and a double armed spring carried in said recess for urging said pins outwardly to eject punchings.

10. A double ended cutting'punch, a recess in said punch between said ends, pins for ejecting punchings from said ends and projecting within said recess, a double armed spring carried in said recess for urging said pins outwardly to eject punchings, and means for retaining said spring in said recess. 3

. In testimony whereof, I have signed my name to this specification.

FRANK'L. HARMON. 

